BI-4

('bi' in the fourth tone)

There are 94 standard Chinese characters that have a 'bi' pronunciation. Major sound-indicating components are: 比 (23 occurences), 必 (13)

必 = must

The single-character meaning is academic; practically always, the following two-character version is used:

必须 = bi(4)xu(1) = must

*****

币 = currency

*****

闭 = to close

A common two-character version is:

关闭 = guan(1)bi(4) = to close

关 = guan(1) = to close, to turn off

关 is the more common character / morpheme for the 'to close' meaning, and is often used alone in sentences where the verb 'to close' or 'to shut down' is required.